title: [Test objects for quality assurance in x-ray diagnosis].
authors.affiliation: Landesamt für das Mess- und Eichwesen in Berlin.
authors.forename: M
authors.initials: M
authors.lastname: London
mesh_terms: D005860:Germany, West; D006801:Humans; D011785:Quality Assurance, Health Care; D011859:Radiography / Q000295:instrumentation / Q000592:standards*
vernacular_title: Prüfkörper zur Qualitätssicherung in der Röntgendiagnostik.